Answer to Question #26630 in Physical Chemistry for supriya

2013-03-17T02:32:21-0400

Question #26630

why cathode rays get deflected towards north pole in presence of magnetic field?

Expert's answer

2013-03-19T10:40:24-0400

Cathode rays are electron beams. When they are moving in a magnetic field, they are deviated. The direction of their deflection is given by Fleming&#039;s left hand rule. The direction of deflection, current (which is the reverse of the direction of the electron beams) and field are all perpendicular to each other. Hence, the electron beam will deviate in a direction contained in a plane which is perpendicular to both the field and the electron beam. Hence, the cathode rays are neither deflected to the north nor South Pole.